Has anyone used TREX composite decking material (or AZEK) for the exterior perimeter of their solar collectors?

I love working with this stuff since it can be worked just like regular wood. I was thinking that you could dado a couple of grooves into it to hold the collector's back panel and glazing material for a really finished look. And it never needs painting.

Wes it sounds like it should work well. How does the price compare with wood?

FWIW somewhere on the http://www.builditsolar.com site Gary mentions looking at a wood collector that had been in use for several years. The wood was still in good shape. He does recommend the plastic deck wood for around the rim of the DIY hot water storage tank (link).__________________Both temperature rise and airflow are integral to comparing hot air collectors

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